AI Safety Institutes will offer guidance in 2025 but have little legal authority to stop truly dangerous models.

Judge as of 31 Dec 2025. The claim has two parts: (a) AI Safety Institutes (US AISI/CAISI, UK AISI/AI Security Institute, and similar national bodies) offered guidance (published evaluations, guidance documents, voluntary frameworks, advice) during 2025; (b) through 2025 they had little legal authority to stop dangerous models, meaning no statutory power to block, recall or halt the deployment of an AI model. True: both hold, i.e. the institutes issued guidance in 2025 and none of the major ones (US, UK, plus most others) gained binding legal power to prevent a model's release or deployment by end-2025. Mostly true: both hold in substance, but one notable institute gained a limited binding power that it did not use or that covered only a narrow case, or guidance output was thin while the authority part plainly held. Mixed: one part clearly holds and the other clearly fails, e.g. institutes were abolished or stopped issuing guidance, while the lack of authority held. Mostly false: one or more major institutes (US or UK) gained real legal authority to block or halt dangerous models by end-2025, though some others did not. False: the major institutes held clear statutory power to stop model deployment during 2025 and also did not offer guidance. Powers held by other regulators (e.g. the EU AI Office under the AI Act) count only if the body is itself an AI Safety Institute or the claim's equivalent.

Set before the research began.

1. E1 AI Safety Institutes Around the World AI Understanding (501(c)(3) nonprofit) · 2 October 2026

   “A common misconception is that these institutes can block model releases. The UK and US bodies have no general statutory power to compel access or stop deployment.”

2. E2 UK AI Security Institute 2026: What Actually Governs Your Data Vucense · 20 February 2026

   “It is not a licensing body. It has no statutory power to approve a deployment, block a release, or issue binding rulings to developers.”

3. E3 America's AI Action Plan The White House · July 2025

   “Led by NIST at DOC, including CAISI, partner with the AI and cybersecurity industries to ensure”

4. E4 Inaugural report pioneered by AI Security Institute gives clearest picture yet of capabilities of most advanced AI GOV.UK (UK Government) · 18 December 2025

   “The report is not intended to make policy recommendations, but gives decision makers in the UK and across the world the clearest data yet of precisely what the most advanced AI systems can actually do.”

On the guidance part, the UK AI Security Institute published an inaugural report on advanced AI capabilities in December 2025, giving decision makers evaluation data (E4). The 2025 US AI Action Plan also gives CAISI a role working with industry (E3). On the authority part, independent sources from 2026 say the UK and US institutes have no general statutory power to compel access or stop deployment (E1), and that the UK institute cannot approve deployments, block releases or issue binding rulings (E2). Both parts of the prediction held through 2025.